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1、五、 Investment Tools: Economics: Microeconomic Analysis1.A: Preliminary Reading: Supply, Demand, and the Market Processa: Explain the laws of supply and demand.All else held constant, a higher price will increase the supply of goods produced and offered for sale. Existing producers will produce more,
2、 and new suppliers will enter the market. The law of supply states that there is a direct relationship between the price of a good and the amount of that good that will be supplied in the market place.Peoples desire for goods exceeds the purchasing power of their incomes. This forces them to make ch
3、oices. People will choose those alternatives that enhance their welfare most relative to their cost. An increase in the cost of an item relative to alternative consumption choices reduces the likelihood of purchasing that item. Higher prices reduce the demand for an item and lower prices raise the d
4、emand for an item. This is called the law of demand. The availability of substitutes is the main reason that consumers buy less of a product as its price increases. Substitutes are goods that perform similar functions. The law of demand states that there is an inverse relationship between the price
5、of a good and the amount buyers are willing to purchase.Market demand schedule: The demand curve will slope downward to the right, indicating that the number of units demanded will increase as the price declines. Some goods are much more responsive to changes in price than others. The greater the nu
6、mber of viable substitutes for a good the more responsive demand is to price. When interpreting the demand curve, remember that we have assumed that factors other than price, such as consumer income, have not changed significantlyb: Discuss how market prices respond to changes in supply and demand.A
7、 market is the environment that encompasses the trading arrangements of buyers and sellers that underlie the forces of supply and demand. Equilibrium occurs when the conflicting forces creating supply and demand are in balance. In the absence of shifts in supply and demand curves, if the price is so
8、 high that supply exceeds demand, some businesses will decrease their prices to sell their excess inventory while others elect to reduce production. The result is a reduction in both price and supply until the market is in equilibrium. Conversely, if demand exceeds supply, the price of the product w
9、ill rise, resulting in reduced demand as consumers find substitutes and increased supply as producers add capacity. This will occur until the market is in equilibrium.c: Explain the difference between shifts in and movements along supply and demand curves.The demand curve isolates the impact that pr
10、ice has on the amount of a product purchased. A movement along a specific demand curve shows a change in quantity demanded resulting from a change in price. d: Discuss the factors that cause a demand curve to shift.Changes in consumer income: Consumers have more money so they can buy more of everyth
11、ing.Changes in the prices of related goods (substitutes and compliments): The price of butter goes up, so consumers buy less butter and more margarine.Changes in consumer expectations: Consumers expect the price of cars to rise next month, so they buy a new car now before the price increases later.C
12、hanges in the number of consumers in the market: As cities grow and shrink, and as international markets open to domestic markets, the change in the number of customers changes the demand curves of many products.Demographic changes: In recent years, the number of people in the U.S. aged 15 to 24 dec
13、lined by more than 5 million. This change will shift the demand curve to the left for such things as jeans and pizza.Changes in Market Demographics: Changes in the population can have a large influence in markets. Population increases cause the curve to shift to the right.Changes in consumer tastes
14、and preferences: As consumer tastes and preferences change, shifts in the demand curves for various products will shift.e: Define short-run and long-run market equilibrium.The short run is a time period of insufficient length to permit sellers to adjust fully to changes in market conditions. Produce
15、rs are only able to increase the supply of a good offered for sale by using more labor and raw materials. New plant and equipment cannot be brought on line in the short run. In the short run, the market price of goods will change in the direction that brings the price which consumers are willing to
16、pay into balance with the price at which producers are willing to sell.The long run refers to a time period of sufficient length to enable producers to adjust fully to market changes. In the long run, producers have the time to alter their productive factors and increase or decrease the physical size of their plants.In the short run, the balance between the amount supplied and the amount demanded that brings about market equilibrium is done by price alone. In the long run, production w
